#223F9A#223F9A

#223F9A is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.5% C 0.153 H 266.1°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#223F9A
RGB	rgb(34, 63, 154)
HSL	hsl(226, 64%, 37%)
HSV	hsv(226, 78%, 60%)
CMYK	cmyk(77.9%, 59.1%, 0%, 39.6%)
CIE-LAB	lab(29.98, 23.36, -52.77)
CIE-LCH	lch(29.98, 57.70, 293.88°)
OKLab	oklab(40.51% -0.0103 -0.1524)
OKLCH	oklch(40.51% 0.153 266.1)
XYZ	xyz(8.2679, 6.2273, 31.3318)
Luminance	0.0623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#223F9A #9A7D22

analogous

#227B9A #223F9A #41229A

triadic

#223F9A #9A223F #3F9A22

tetradic

#223F9A #9A227B #9A7D22 #229A41

square

#223F9A #9A227B #9A7D22 #229A41

split-complementary

#223F9A #9A4122 #7B9A22

monochromatic

#0C1636 #172A68 #223F9A #2D54CC #5B7ADB

Accessibility & contrast

On white

9.35

#223F9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#223F9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #223F9A

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##223F9A	#FFFFFF	#000000	##FFFFFF
##223F9A	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9D

Deuteranopia (green-blind)

#004198

Tritanopia (blue-blind)

#005666

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #223f9a;
/* rgb */ color: rgb(34, 63, 154);
/* oklch */ color: oklch(40.5% 0.153 266.1);

Tailwind

colors: {
  custom: {
    50: '#7073b9',
    500: '#223f9a',
    950: '#000000',
  },
}

SCSS

$custom: #223f9a;
$custom-light: #7073b9;
$custom-dark: #000000;

JSON

{
  "hex": "#223f9a",
  "rgb": {
    "r": 34,
    "g": 63,
    "b": 154
  },
  "hsl": {
    "h": 225.5,
    "s": 63.83,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40506,
    "c": 0.15271,
    "h": 266.1
  },
  "luminance": 0.06228
}

Semantic roles & 50–950 ramp

primary

#223F9A

secondary

#BFA658

accent

#BF41E7

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #223F9A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →